How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Portobello Po'boys?

You need 10 ingredients. The key ingredients include: 3 tablespoons olive oil, 4 portobello mushroom caps, lightly rinsed, patted dry, and cut into 1-inch pieces, 1 teaspoon cajun seasoning, salt, and more.

Is Portobello Po'boys suitable as general?

Yes, Portobello Po'boys falls under the General category and is a great choice for this type of meal.

How do I store leftover Portobello Po'boys?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Portobello Po'boys Recipe

Name: Portobello Po'boys
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 tablespoons olive oil; 4 portobello mushroom caps, lightly rinsed, patted dry, and cut into 1-inch pieces; 1 teaspoon cajun seasoning; salt; fresh ground black pepper; ¼ cup vegan mayonnaise; 4 crusty sandwich buns, halved horizontally; 4 slices ripe tomatoes; 1 ½ cups shredded romaine lettuce; Tabasco sauce

Try this homemade Portobello Po'boys recipe the whole family will love. Made with olive oil, portobello mushroom caps, cajun seasoning and salt. Easy st…

This Portobello Po'boys relies on simple, everyday ingredients such as olive oil, cajun seasoning, salt and fresh ground black pepper. It comes together quickly and makes 4 servings, at about 231 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 General

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Portobello Po'boys

Tips for the best results

Variations & substitutions

My Personal Notes

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